Apparatus for annealing flats and other shapes.



F. H. DANIELS. APPARATUS FOR ANNEALING FLATS AND OTHER SHAPES. APPLICATION FILED MAE. 6,1909.

943,625. A Patented Dec. 14. 1909.

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F. H. DANIELS. APPARATUS FOR ANNEALING FLATS AND OTHER SHAPES.

APPLICATION FILED MAR. 6, 1909. 943,625. Patented Dec. 14. 1909.

5 I K -W WITNESSES Y '1 material both physically and tTNlTED ll ri ilih lt Ul-Flilitllil.

FRED H. DANIELQ, 0F VIORCESTER, MASSACHUSETTS.

APPARATUS FOR ANNEALING FLATS AND OTHER SHAPES.

Patented Dec. 1st, 1909.. Divided and this application filed March 6,

1909. Serial No. 481,593.

To all W/iom it may coin-(Tn:

Be it known that I, l nnn ll. DAMELS, ol ll'orccster, in the county of llorcestcr and State of .llassachusetts, have invented a new and useful in'iprovcment in -rpparatus for lrnnealing Flats and other Shapes, of which the following is a full, clear, and exact description, reference being had to the acconr pai'lying drawings, forming part oi? this spmritication, in which=- Figure V1 is a side view showing diagram matically one form of apparatus embodying my invention; Fig. 2 is a plan view of the. same; Fig. is a horizontal. section of one form of furnace; Fig. 4- is a vertical section of the same; Fig.5 is a detail view showing one of the sectional bi" ,-ks.

My lllYLllllOll has relation to apparatus for annealing flats and other metal shapes and especially applicable to shapes of long length and of various widths, and is designed to provide a continuous process, tonether with apparatus for carrying out the same which will insure a uniform grade of. chemically. For round wire or narrow flats common inutlle or pot annealing is more or satisfactory in its results. the heat penetrates comparatively quickly through the coils. The wider, however, the section is the longer it will take or the heat to penetrate the closely wound bundle, and when it cools oil, the outer portions will cool much more quickly than the inner portions, all these conditions prevent obtaining uni form grade of product.

This application forms a divisional part of mycopending application. Serial Numher 466,471, filed Dec. 8, 1008, for metl'iod for annealingfiats and other shapes.

My invention is designed to provide means by which the flats or other cooling" action tln'oug'hout', thereby a unilorm texture and hardness.

in accordance with my invention, the hats when rolled in a rolling mill are reeled up into close bundles. These bundles are a t lt-n ward placed on an uurecling apparatus. such as indicated at 2 in Figs. l and 2, and the insuring;

unrceled flats are led thore'trom throng. Ill

annealing furnace, such as shown a I.) in Figs. 1, 2, 8 and l. After passing out of the annealing tartan-c, the tlats are gradually cooled without coming into contactwith sections may be sub ected to a umtorm limiting; and

lthe outer air. For this purpose, they are first passed through protecting pipes or i'tubcs 7, and then through a receptacle 8, con taining 21 mass or packing consisting of coal, coke or other carbonaceous material, which 1 in contact with the hot metal forms a nonoxidizing gas. Any other material. which i will form such a gas in contact with the t metal and which is in 0* her respects non-nil t l jurious, may also be employed. 'lhis gas also excludes the air, and for these reasons the metal is completely protected against oxidation. i a suitable take-up frame 9, having reeling or icoiling drums l0, upon which they are iwound. I In the particular arrangement of apparatus shown in the drawings, provision is made for simultaneously annealing sixteen ditierent flats, there being two sets of the 1 unreeling rollers, 2, arranged side by side, i and each set containing eight rollers in successively lower planes, as shown in Fig. 1. f'lhe take-up frame 9 is provided with a lsimilar number of the coiling or take-up l rollers 10.

i The furnace is shown as: having two i parallel series of bricks 11, each of which 1s made in two sections, as shown in Fig. 5, fill a space 12 between the sections for the at; to pass through. The bricks are also i thicker at their ends than at their intermei dlate portions, as shown in Fig. t, so as to i provide the lateral spaces or openings 13. Any desired number of these openings may be filled up with brick or other material, so as to properly distribute the heat where it. is wanted or they may be all left. open. The furnace is provided with a tire grate i 1-52, at one end, the fire being, led from the grate around the rows of bricks and battle walls ll, and then back up over the rows l of bricks to the chimney or stack .15, a suitable longitudinal battle it; being provided to "term the upper line 17, leading to the stat-k.

The furnace shown and described is heated by coal or coke, butan equal result could be obtained by a furnace heatcdwith gas, oil or any other manner known to the arts. The advantages of my invention result l from the uniform heating and cooling'of the tlats, whereby uniformity in the exture and hardness of the steel is obtained. Also t from the simplicity of the apparatus which The flats are then wound up on Eltl iii

tit)

, furnace, re-reeling or take-up apparatus at enables theprocess to be carried out continuously and withrapidity, it being pos-- sible to anneal a large number of flats or other. sections simultaneously, thereby making possible a low manufacturing cost. It will be understood that any desired number of flats or other sections can be simultaneously annealed...

It will be noticed that several Wires, strips or flats, instead of, asicommonly is the case, being run side by side in a horizontal plane, are placed one above the other in vertical planes. By this arrangement, the workmen have easy access to all the wireswhich would not be the case if many wires were placed horizontally.

It will also be understood that any annealing furnace can. be substituted for the furnace shown' in the drawings. An annealingfurnace such as shown in my application Serial No. 481,594'filed March 6, 1908 can be readily substituted therefor.

I claim:

1. Apparatus for annealing flats and other metal sections, comprising an annealing fur-- nace, unreeling apparatus at one end of the furnace, a mass of carbonaceous material beyond the furnace, means to exclude the air from the flatsduringtheir passage from the furnace to and through the carbonaceous material, and re-reeling or take-up apparatus beyond the carbonaceous material;

substantially as described.

2. Apparatus for annealing flats and other metal sections comprising an annealing furnace, unreeling apparatus at one 'end of the furnace, an inclosed cooling chamber containing' carbonaceous material at the oppo site end of the-furnace, and re-reelingor takeup mechanism beyond the cooling chamber, and means to exclude the air from contact with the flats during their passage through the apparatus; substantially.as de scribed. V

3. Apparatus for annealing flats and other metal sections, comprising anannealing furnacc, unreeling. apparatus at one end of the the other end of the furnace, a cooling chamber containing a mass of carbonaceous material intermediate of the re-reeling or take-up apparatus andthe adjacentend of the furnace, and closed guides for guiding the flats or other sections from the furnace into the cooling chamber; substantially as described. 4. In apparatus for annealing flats and other metal sections, an annealing furnace 5 5. In apparatus for ann aling flats and contacting with the flats or other sections 0 having-a lon itudinally extendingseries of sectional bric s therein, said bricks having longitudinal openings therethrough formed between the sections of said bricks to provide passages forthe articles to be annealed, and

also havin transverse o enings between adjacent bl'l'C s; substantia ly a described.

other metal sections having therein a longitudinally extending series of sectional bricks having longitudinal openings between the sections of said bricks placed one upon an other and forming thereina plurality of longitudinally extending passages one above theother for the articles to be annealed, said bricks also having transverse openings between adjacent bricks for'cond-ucting heat over and under-said passages; substantially as described.

'6. Apparatus for annealing flats and the like, comprising an annealing furnace having a vertical wall extending throughout the length of said furnace, a plurality of guides orpassages for the flats extending through the wall, the sides of said wall being exposed to the heat of the furnace, and circulating openings through said wall above and below the passages,-a plurality of unreeling devices at one end of-the furnace, and a plu- -rality of re-reeling devices at the opposite end of the furnace; substantially as described. v

7. In apparatus for annealing flats and the like, an annealing furnace having a l'on-' gitudinal Wall therein, a plurality of separate annealing passages therein in the same vertical plane, the sides of said wall being exposed to the heat of the. furnace, and transverse openings through the wall above and below the passages to circulate the heat around said passages; substantially as described. i

i 8. Apparatusfor annealing flats and other metal sections, comprising an annealing fur nace, a receptacle containing carbonaceous materialfand means to pass the flats through the furnace and then through the receptacle containing the carbonaceous material, and means to exclude the air from contact With the flats during their passage through the apparatus; substantially as described.

r 9. Apparatus for annealing flats and other metal sections, comprising an annealing fur.- ll(, nace, a receptacle containing a mass of carbonaceous material, unreelin apparatus at one end of the furnace, re-ree ing or take-up apparatus at the other end of the furnace, andan inclosed guide for 'each flat to guide 1.15 and exclude the air'from the flats or other sections, in their passage from the furnace to the receptacle containing carbonaceous material; substantially as described.

10. Apparatus for annealing flats and other metal sections, comprising an annealing furnace, unreeling apparatus at one end of the furnace, .re-reeling or take-up apparatus at the other end of the furnace, a coolrial intermediate of the r e-reeling or takeup apparatus and the adjacent end of the furnace, andclosed guides in a vertical plane for guiding and preventing the; air from ing chamber containing carbonaceous mate posed of a series of sectional bricks in a vertical plane. said bricks having longitudinal openings therethrough formed between the sections of said bricks to rovide passa es forum articles to be anneal ed'; substantially as described? I 12. In apparatus-for annealing flats or other metal sections, an annealing furnace havmg a longitudinally extending series of q sc .-tional,bri cks in a vertical plane, said bricks having longitudinal openings therethrough formed between the sections of said bricks to provide to be. annealed, an also having lateral passages intersecting. said openings; substan- .tially as described.

13. Apparatus for annealing flats and the like, comprising an annealing furnace hav i ing a )luality of guides (iipassages in a vertica plane for the flats, aplurality of unreeling devices at one end 0 the furnace, a mass of carbonaceous material beyond the furnace, a plurality of re-reelin devices bevond the carbonaceous inateria and means -to prevent the flats from contacting with the air during their entire passage through the flninfiq substantiall as described.

14. In apparatus or annealing flats and n apparatus for annealing flats and assages for the articles the like, an annealing furnace having a plurality of separate annealing passages in a vertical plane to receive the flats, and a receptacle beyond the furnace containing carbonaceous material, substantially as de scribed.

15. In apparatus for treating flats and the like, an annealing furnace having inclosed passage extending therethrough from which air and steam are excluded, a cooling chamber beyond said furnace and connected to the passage in which the flat is gradually cooled in a non-oxidizing atmospherqand means to continuously draw the flat through the passage in the furnace into and through the cooling chamber; substantially as described.

16. In apparatusfor treating flats and the I like, an annealing furnace having a plurality of mclosed passages extending therethrough,

a cooling chamber containing a carbonaceous atmosphere beyond the furnace and connected to the passages, and means to continuously draw the flats through the passages in the furnace and the cooling chamber; sub stantially as described.

In testimony whereof, I have hereunto set my hand.

FRED H; DANIELS.

Witnesses A. F. BAUKLIN, v Geo. SIEURM. 

